temporary works(shall mean all temporary structures or items provided to complete the construction and commissioning of the plant but which will not form a permanent part of the plant, Понятие "Временные работы" включает в себя работы с временными сооружениями или конструкциями не входящими в число постоянных объектов завода и необходимыми для завершения строительства и пуска завода в эксплуатацию. – Fluor Daniel, 2000)
contingent work(Contingent work, also sometimes known as casual work, is a neologism which describes a type of employment relationship between an employer and employee. There is no universally agreed consensus on what type of working arrangement constitutes contingent work, but it is generally considered to be work with at least one of the following characteristics: Temporary or without job security, Part time, Paid on a piece work basis wikipedia.orgBRUNDOV)
guardian.co.uk Alexander Demidov); temping (VLZ_58); temp work (VLZ_58); char; gig economy (система экономических взаимоотношений vogeler); side hustle (vogeler); side job (vogeler); side gig (vogeler); temp job (Taras)